Disk galaxies
type: Concept
narrower: Spiral galaxies

Barred spiral galaxies
type: Concept
broader: Spiral galaxies

Spiral galaxies
modified: 2020-11-04T16:31:30.767Z
modified: 2020-11-04T16:31:42.813Z
narrower: Unbarred spiral galaxies
narrower: Barred spiral galaxies
narrower: Milky Way Galaxy
narrower: Triangulum Galaxy
narrower: Andromeda Galaxy
contributor: AAS Frey.Katie Admin
broader: Disk galaxies
related: De Vaucouleurs Sandage classification
related: Hubble classification scheme
definition: A galaxy with a prominent nuclear bulge and luminous spiral arms of gas, dust, and young stars that wind out from the nucleus. Masses span the range from 10^10 to 10^12 solar masses.
alternative label: S galaxies
type: Concept

Hubble classification scheme
type: Concept
related: Spiral galaxies

Unbarred spiral galaxies
type: Concept
broader: Spiral galaxies

Milky Way Galaxy
type: Concept
broader: Spiral galaxies

Triangulum Galaxy
type: Concept
broader: Spiral galaxies

De Vaucouleurs Sandage classification
type: Concept
related: Spiral galaxies

Andromeda Galaxy
type: Concept
broader: Spiral galaxies